Finding the Fourth Proportional to 25,061.21, 34,595.93 and 21,644.63

Step by Step Solution

1. Step 1: Write the proportion equation
   25,061.21 : 34,595.93 = 21,644.63 : x
2. Step 2: Convert to fraction form
   25,061.21/34,595.93 = 21,644.63/x
3. Step 3: Cross multiply
   25,061.21x = 34,595.93 × 21,644.63
4. Step 4: Simplify right side
   25,061.21x = 748,815,985.49
5. Step 5: Solve for x
   x = 748,815,985.49/25,061.21
6. Step 6: Final answer
   x = 29,879.49